Extension-bracket.



Patented Nov. 28, |899.

W. A. NDRDYKE.

EXTENSION BRACKET.

(Application filed Oct 26, 189B.)

2 Sheets-Sheet l,

(No Model.)

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rdyke l No. l "u" l' www! IIIHII ////////ll llll WT HTI Uwe/rey NrT-En STATES PATENT Clarion.

W'ALTER A. NORDYKE, OF INDIANAPOLIS, INDIANA.

ExTENsloN-BRACKET.

SPECIFICATION forming part of Letters Patent No. 637,969, dated November 28, 1899.

Application tiled. October 26, 1898. Serial No. 694,594. (No model.)

T0 @ZZ whom it may concern.- i

Be it known that I, WALTER A. NoRDyKE, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Extension-Brackets, of which the following is a specification.

This invention relates to improvements in brackets for supporting telephone, electriclight, and other Wire cables, and is especially 'adapted for use in manholes requiredfor the in a plurality of removable sections, which may be added to increase the length of the 'arm from time to time as needed. These objects are accomplished by the mechanism illustrated in the accompanying drawings, in Which Figure l is a vertical section through a manhole, showing cables supported by brackets made in accordance with this invention; Fig. 2, a detail in perspective of a Wooden post to which the bracket is fastened and showing the rst and second sections of the improved jointed bracket in operative position in full lines and a third section in dotted lines; Fig. 3, a perspective vieu7 of a single one of the removable sections ot' the bracketarm; Fig. 4, an underside vieW of the first section or section adjacent to the supportingbracket in which the sections are bolted together.

Similar letters of reference indicate like parts throughout the several views of the drawings.

A represents the walls of a manhole of usual construction, and B the tile conduits of usual construction leading in from the streets in the usual way, and C are the cables, for the support of which Within the manhole the bracket forming the subject of this invention is intended.

D are wooden posts which are retained in vertical position against the `wall by bolts d, which are inserted as the Wall is laid, and have outside heads d to prevent their Withdrawal.

, E are lag-screws upon which the brackets are hung and Which may be inserted before the posts are set or afterward, as needed for use.

F represents the first section. of my improved bracket, which differs from the remaining sections in that it is provided With means for removably secu ring it to the lagscrew from which it is to be supported. The face designed to contact with the post is slotted from the bottom vertically, but only part way of its length. The bracket-section is inserted with the head of the lag-screw in the slot and its Withdrawal except by a vertical upward movement is prevented by the inwardly-projecting marginal iianges ff. EX- tending from this expanded body-portion F ot' the bracket-sectionon the side opposite the slot is the arm F2, of suitable length and suiiiciently dished to make a good seat for the cable. The arm is suiiiciently Wide to make' "a good bearing for the cable and to decrease the Weight and cost Will preferably be much thinner than the Width, as shown in the drawings, and will be strengthened by the .under side Webfs. The' outer end of the arm Will have the tWo lateral oppositely-projected pins f7, from which the next adjacent sect-ion of the bracket will be suspended.

As all of the remaining sections Will be alike a description of one will suffice for all. This second section is represented at G.

G' is the body part, having the bifurcated extensions g g, with hooked terminals to engage the pins on the adjacent section of the bracket F in the manner as shown in Fig. 2,

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and extending from below the hooks g g is the diagonal brace g', which is integral with the body G and abuts on the body ot' the section F. The body G has the arm G2, similar to the arm F2, with the same under side web g2and pins Q7. The lower end of the body G in each bracket-section extends down to afford a bearing foradiagonal brace next outside of it.

In the modification shown in Fig. 6 the outer or forward end ot' the arm is provided with the under side extension H', having an end socket h and a slot h' between the socket and arm. Extending in a diagonally-downward direction from the other end is the bar h3, corresponding somewhat in construction and bility oi ammonia alum which is formed when the aluminium sulphate is added tothe chlofunction with the diagonal brace g of the bracket already described, except that it serves the double purpose of a means of attachment in place ofthe hooks and of a brace.

The manner of putting together is shown in the drawings.

In the modifications shown in Figs. 7 andS the section to which an attachment is made has opposite side grooves iz',- which follow t-he arc of a circle and into which a pair of similarly-curved tongues 1H," of the section to be attached are inserted for the purpose of preventing the accidental dismemberment of the bracket.

In the modification shown in Figs. 9 and l() the body J on which the cable rests, has the deep groove J", on one side, with inside socketsjj. Into this groove the tongue J2 from the adjacent section to be fastened to it is inserted by a half-turn, which is made necessary by the pins or lugs ,7'33'3 projecting down from the lower edge of the tongue. The up- .per corner ot' the tongue and the inside edge are lugs to keep the sectionsfrom rotating on the bolts.v

In all of the above-described forms the weight ot' the cable when once in position on the bracket will be sut'ticient to prevent the accidental displacement of the latter or of any of its sections.V

Having thus fully described my invention, what I claim as new, and wish to secure by Letters Patent of the United States, is-

l. A bracket in a plurality of parts and means for removably but rigidly securing the parts together in series whereby the length of the bracket can be varied without permitting of downward or lateral movement of the parts, substantially as described.

2. A bracket in a plurality of separable parts said bracket being removably secured to a su pport, but not adjustable laterally and said parts being separable to vary the length of the bracket by the removal or addition of one or more of said parts but not adjustable laterally, the fastenings for connecting the parts being integral portions ot the parts to be joi'ned,substantially as described.

3. A bracket for supporting underground cables and the like comprising a first section with means for removably securing it to a fixed support, and additional sections and all of said sections having interlocking hooks which require the outer ends of the sections to be raised to attach and detach them but not turning in a horizontal plane, substantially as described and specified.

4. In a bracket for the purposes described, a iirst or initial section removably attached to a fixed support, additional separate sections and fastening means consisting of parts integral with one section to interlock with counterparts integral with the section to be attached to it whereby all of the parts or sections are attached to the irst, substantially as set forth.

5. A bracketforfsupporting underground cables and the like comprisinga first section with means for removablysecu ring it to a fixed support, and additional sections secured to the first, all of said sections having interlocking portions integral with the sections, which permit of neither downward nor lateral movement of said sections in either direction, for removably securing the additional sections to the irst or initial section to Vary thev WALTER A. NoRDYKE. [1.. s]

Witnesses:

J. A. MINTURN, CARL SCHLEGEL.

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